co-n.de

Valid Email Server
Domain Lookup › co-n.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
co-n.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 16:11:28 UTC · ↺ Refresh

MX Hostnames

  • mail.co-n.de

MX Priorities

  • mail.co-n.de: 10

A / AAAA Records

  • 138.201.161.95 ↩ mail.co-n.de

Mail Server IPs

  • 138.201.161.95 ↩ mail.co-n.de

SOA Record

Raw SOA ns3.compoffice.de info.compoffice.de 2025030302 14400 3600 604800 86400
Primary NS (mname)
ns3.compoffice.de
Admin Email (rname)
info@compoffice.de
Serial
2025030302
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns3.compoffice.de
ns5.compoffice.de
ns4.compoffice.de

SPF Record

✓ Strict (-all)
v=spf1 a a:mail.co-n.de ip4:138.201.161.95 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 a a:mail.co-n.de ip4:138.201.161.95 -all
Full email verification for co-n.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits